A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 5950-00-681-2046
NSN 7035-01-085-5955
NSN 6130-01-097-6363
NSN 6240-01-204-5454
NSN 5895-00-417-1109
NSN 5965-01-070-5515
NSN 5925-01-059-0275
NSN 5999-01-487-3207
NSN 6620-01-026-1776
NSN 5985-01-406-6615
NSN 6610-00-151-8074
NSN 5895-01-188-8682